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Erwanto Erwanto
Politeknik Manufaktur Negeri Bangka Belitung (POLMAN BABEL) Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics

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Analisa Kekakuan Pelat Galvanil Ketebalan 0,6 mm Terhadap Pembentukan Bead Roll dengan Variasi Ukuran dan Bentuk Trapesium Harsono, Abimanyu; Erwanto, Erwanto; Ariyanto, Ariyanto
Manutech : Jurnal Teknologi Manufaktur Vol. 16 No. 02 (2024): Manutech: Jurnal Teknologi Manufaktur
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/manutech.v16i02.424

Abstract

Thin plates are a common material used in the automotive industry for vehicle panels. Galvanized metal materials are typically selected for use in vehicle panel construction due to their ductile nature, malleability, and resistance to corrosion. The function of vehicle panels is of great consequence with regard to the safety and comfort of the vehicle. The level of comfort experienced by vehicle occupants is influenced by noise, which is a consequence of vibrations generated by the engine and the road surface. The detrimental effects of excessive vibration can be mitigated by enhancing the rigidity of the panel. One method of achieving this is through the formation of a groove profile on the panel's surface, utilizing a bead roll process. The objective of this study is to ascertain the impact of variations in the width and depth of the groove, with a trapezoidal shape, on the stiffness of 0.6 mm thick galvanized plates for natural frequency response. The research method entailed the creation of an experimental design, the formation of a groove profile through the bead roll process, and the subsequent natural frequency testing of the plates using a Vibroport 80. The results of this testing were then subjected to analysis. The findings indicated that the variation in groove width and depth had no discernible impact on the plate stiffness with respect to the natural frequency response.
PEMBUATAN KOMPOSIT MATRIK RESIN FENOLIK DIPERKUAT SERBUK LOGAM DAN RHA HIBRID DENGAN METODE METALURGI SERBUK wiryono, sukanto -; Ardiansyah, Ardiansyah; Erwanto, Erwanto; Oktriadi, Yudi
Machine : Jurnal Teknik Mesin Vol 11 No 2 (2025): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/nea0v054

Abstract

Penelitian ini bertujuan untuk menyelidiki pengaruh variasi persentase matriks resin fenolik dan tekanan kompaksi terhadap sifat mekanik dan fisik komposit hibrid berbasis resin fenolik yang diperkuat serbuk logam (aluminium, kuningan, silika) serta abu sekam padi (RHA) menggunakan metode metalurgi serbuk. Persentase matriks yang digunakan adalah 46%, 54%, dan 62%, sedangkan tekanan kompaksi divariasikan pada 5000 Psi, 5300 Psi, dan 5600 Psi, dengan setiap kombinasi diulang sebanyak tiga kali. Uji kekerasan dilakukan menggunakan metode Brinell, dan densitas diukur dengan prinsip Archimedes. Data hasil pengujian dianalisis menggunakan ANOVA faktorial dua faktor untuk mengetahui signifikansi masing-masing variabel. Hasil penelitian menunjukkan bahwa tekanan kompaksi tidak berpengaruh signifikan terhadap kekerasan maupun densitas, sedangkan persentase matriks berpengaruh signifikan terhadap kedua sifat tersebut. Kombinasi optimal diperoleh pada matriks 46 % dan kompaksi 5000 Psi dengan nilai kekerasan 82 HRB. Densitas tertinggi dicapai pada tekanan 5000 psi dan matriks 46%, dengan nilai 1,461 g/cm³. Temuan ini menunjukkan bahwa komposit yang dihasilkan berpotensi kuat sebagai material alternatif ramah lingkungan dan aman untuk kampas rem non-asbes.
Fabrication of Aluminium Matrix Composite Powder Reinforced with Silicon Dioxide Tailings for Non-Asbestos Brake Pads (NOB) Sukanto, Sukanto; Wahyudie, Ilham Ary; Erwanto, Erwanto; Oktriadi, Yudi; Rodika, Rodika; Irwansyah, Ricky; Husman, Husman; Saputra, Devrin Dwiki; Algaza, Haradat Tahrir
Jurnal Penelitian Pendidikan IPA Vol 10 No 10 (2024): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i10.9208

Abstract

Tin mining tailings consist of 80-90% sand and the rest mud.  The high levels of Silicon Dioxide (SiO2) in these tailings are hard and can be used as an added material in the manufacture of composites.  This research aims to study the physical and mechanical properties of metal matrix composites reinforced with SiO2 powder processed by powder metallurgy, as an effort to provide a replacement material for Non-Asbestos (NOB) motorbike brake linings.  The impact of hot compaction pressure in the form of two pressing directions, including 4600, 4500 and 4400 Psi, with a pressing hold of 15 minutes and sintering which includes 30, 20 and 10 minutes, at a temperature of 600 ºC was studied for its effect on hardness and density.  Mechanical blending was used with a horizontal ball mill in the ratio of 10:1 at a speed of 90 rpm for 4 hours.  The test results showed that the greater the hot compaction pressure and the longer the sintering, the higher the hardness and density values.  The highest hardness reached 81.7 HB and the highest density of 2.385 g/cm3 occurred at a bidirectional hot compaction pressure of 4600 Psi, with the lowest wear rate of 0.333 mm3/m. This occurs as a result of the increase in hot compaction has an impact on increasing the contact between powder particles resulting from mechanical alloying to be tighter as a result of which the cavity and porosity decrease
Impact test strength analysis of composites reinforced with palm fiber (ijuk) Muhammad Saddam Alghofur, Muhammad Saddam Alghofur; Husman, Husman; Erwanto, Erwanto
JTTM : Jurnal Terapan Teknik Mesin Vol 7 No 1 (2026): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v7i1.1960

Abstract

The development of material technology drives the need for strong, lightweight, and environmentally friendly materials. One solution that is widely developed is natural fiber-based composite materials because they have good mechanical strength, abundant availability, and are biodegradable. Palm fiber (Arenga pinnata) is one of the potential candidates as a composite reinforcement due to its moisture-resistant, strong, and easily available properties in nature. This study aims to analyze the effect of variations in the volume fraction of palm fiber and the soaking time of 5% NaOH on the impact toughness of Yukalac 157 BQTN polyester resin-based composites. The method used is an experimental method with a hand lay-up process in making specimens and testing was carried out using a GOTECH GT-7045 impact testing machine according to ISO 179-1 standards. The variations tested include fiber volume fractions of 25% and 30% and soaking times of 2 hours and 3 hours. The results showed that the 25% fraction with a 2-hour immersion produced the highest toughness of 82.39 kJ/m², while the 30% fraction showed an increase in strength after a 3-hour immersion with a value of 37.77 kJ/m². This combination produces a polyester resin-based composite that is strong, lightweight, and has the potential to be used as an alternative material for sustainable motor vehicle body panels.
Investigasi Kekakuan Pada Pelat Baja Lunak Dengan Pembentukan Metode Dimple Dies Triangle Profile Arisandi, Risky; Erwanto, Erwanto; Harwadi, Harwadi
Jurnal Inovasi Teknologi Terapan Vol. 4 No. 1 (2026): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v4i1.403

Abstract

This study aims to analyze the effect of variations in the number and diameter of dimple holes on the stiffness of mild steel plates using the Dimple Dies Triangle Profile forming method. Plate stiffness is important for reducing vibrations, especially in vehicle components. The material used was a 0.6 mm thick galvanneal plate, with dimple diameters of 25 mm and 30 mm, and hole quantities of 16 and 20. Testing was conducted using a Vibroport 80 device to measure natural frequency as an indicator of stiffness. The experimental design employed the Taguchi method with an L4 orthogonal array to analyze the influence of each parameter. The results showed that the number of dimple holes significantly affected the plate’s natural frequency, while the dimple diameter had no significant effect. The optimal combination producing the highest stiffness was a 25 mm dimple diameter with 16 holes. ANOVA and S/N ratio analysis supported these findings, indicating that the number of holes contributed more than 90% to the variation. This research is expected to serve as a reference for developing stiffer and more vibration-resistant metal plate designs, particularly for automotive and other engineering structure applications.  
Co-Authors Aditya Wijaya Algaza, Haradat Tahrir ARDIANSYAH ARDIANSYAH Arisandi, Risky Ariyanto Ariyanto Aswin, Fajar Darensyah, Marcel Diaz Widiantoro Pramono Firkian Rinanda Gandis Sarahwikan Heyka Harsono, Abimanyu Harwadi, Harwadi Husman Husman Ilham Ary Wahyudie Irwansyah, Ricky Luh Putu Ratna Sundari Marendi Nopiansyah Mgarifina N Ngarifin Miftahul Huda Pamungkas Muhammad Saddam Alghofur, Muhammad Saddam Alghofur Muhammad Yunus Nidia Lestari Novan Febrian Nur Kholis, M. Irfan Oktriadi, Yudi Pranata, Syendy Rodika Saputra, Devrin Dwiki Sofwan, Ibnu Solly Aryza Sugiyarto Sugiyarto Sugiyarto Sugiyarto Sukanto Sukanto Syafira Qintasia Taufiq Hidayat wiryono, sukanto - Yuliyanto Zulfitriyanto, Zulfitriyanto